Windshield defroster



Aug. 25, 1936. P. NIELSEN w 2,051,999

' WINDSHIELD DEFROSTER "Filed Feb. 5, 1936 2 Sheets-Sheet 1 I v Imoentor FEW-311 NIELVSE a m att y I Aug. 25, 1936. P. NIELSEN 2,051,999

' WINDSHIELD DEFROSTER I Filed Feb. 3, 1936 2 Sheets-Sheet 2 Zhwentor PETEK NIELSEN.-

1 lass.

Patented Aug. 25, 1936 UNIT-ED Tis ATEs PATENT OFFIE wmpsnmm nEFnosTEn Peter Nielsen, Omaha, Nebn, assignor to Jubilee Manufact (20.; Omaha, Nebr., a 90W tion oi Ncb Application mm s, 1936, Serial N... 62,133

4 Claims. c1. 20-405)- 7 This invention relates to windshield warmers or I deirosters for-automobiles of that type used in conjunction with a hot air heater for the interior of a closed automobile body, and has foris kept open longitudinally during use for a free and unobstructed transmission therethrough of heated air, said means being collapsible with the tube for storage purposes and susceptible of ready extension with the tube for application and subrequent use.

A further object 01 the invention is to providev means for re'movably securing the free end of the tube adjacent to a windshield glass, parts 01' said means being readily detachable from other parts thereof whereby warm air may be selectively applied to a windshield at desired times, or directed against the operator's hands or feet or toward other occupants of the automobile or portions of the interior of the latter.

8o ceiver employed.

Other objects and advantages of the invention will be understood from the following description and more particularly pointed out in the claims appended hereto.

In the drawings Figure l is an elevation of an automobile windshield, heater and a fragment of an automobile body and showing the present invention applied thereto in a position or use.

Figure 2 is a transverse automobile heater and having an endoi' the tube oi the present invention attached thereto.

8 is a transverse sectional view oi annular p in employed.

Figure 4 is a sectional view of a receiver em ployed provided at its mouth shown in Figure 3.

Figure 6 is an enlarged iront elevation oi the 7 heater shown in Figure 1.

Figure 7 is a perspective view oi the invention in a contracted position be mrther folded for storage t. Figuretisaplanviewotthemouthoiairevertical section of an with the spring" Figure is a plan view of an atg me e present and to Figure 9-is a side view 01' an end portion ofa tube employed and shown partly in section.

Figure 10 is a longitudinal section oi the tube shown in Figure 9. Figure 11 is a longitudinal sectional view, of a fragmht of an automobile body and showing the heater therefor with the new device applied thereto in a position of use with respect to a windshield.

In the drawings like symbols refer-to like or corresponding parts and referring to the drawings by reference numerals 28 indicates the closed body of an automobile having a glass windshield 2i, and a heater 22. The windshield warmer or defroster oi the present invention is adapted to cooperate with any of the types of automobile heaters shown in Figures 1 to 2 inclusive as well 7 as with other types 01 heaters as later explained. The heaters shown in the drawings usually include a shell 23 having either horizontally,

vertically or diagonally positioned grills 24 through which hot air is delivered as circulated by a ran 25, the latter being best shown in Figure 1 2. The air circulated by the fan is heated while passing through the coils or between the fins of by hot water or electrically. Alsothe present invention is adapted to cooperate with that type of heater which employee. a simple pipe in communication with the interior of the body of the automobile, and having anvair intake end adjacent 3o to-the exhaust manifold of the engine of the automobile, maniiold heating the air as the latter passes'through said pipe.

The new device includes a cloth or fabric receiver 26 having an open mouth" 21. A hem 28 2t oi a heater at times when the annular spring is compressed between the fingers whereby when rel the pins are normally urged away from each other by the spring, causing the pins to engage against and grip thegrill for DO- sitioning the th oi the receiver cooperatively against said grili for receiving hot air therein as delivered by the heater.

Sly the pins or detents. "are adapted tobespreadagainsttheinnerannularwalland end portion of a pipe, such as the pipe 3| shown inFlgureziorreceivingwarm airtheretromin when a vehicle is equipped with a plain u .a radiator, not shown, the latter being heated 25 pipe heater, it being an object of the invention to provide a device which is adapted to cooperate with the more conventional types of automobile heaters and of fairly universal applicability.

A cloth or fabric tube 32 is stitched or otherwise suitably secured to the receiver whereby warm air from the heating device may be com-,

A coiled spring 38 is positioned within the tube 32, the ends thereof being respectively fastened to one end of the tube by stitching and the other end squeezed between the rings 34 and 35 or otherwise suitably secured, said spring being adapted to contract and extend with the tube. The spring 38 functions to keep the passageway through the tube open at all times when in use. Adjacent the free end of the tube 33 and carried by the frame a resilient clip 39 is provided. The clip 39 may be formed integral with the" inner ring 34 or carried by the latter and is provided with oppositely disposed fingers 40' which are resilient and normally urged towards each other.

A pair of vacuum cups 4| are preferably employed and secured together in spaced apart relation by means of a bar 42 which extends between them, said bar being secured to the cups by means of bolts 43 and nuts 44. The heads of the bolts being seated within said cups at the time the latter are moulded.

The cups are formed of rubber and when pressed against a flat, smooth surface such as a windshield glass the air is forced from in under their-concaved surfaces 45, causing said cups to adhere to the windshield glass on a portion thereof selected by the operator whereby the clip 39 may be removably attached to the bar 42 for positioning the free end 33 of the tube operatively adjacent the windshield glass while at the same time said free end 33 and the clip 39 may be readily removed at desired times away from the bar 42 and without detaching the cups 4| from the glass, said removal being desirable in instances where the operator desires to warm his hand or to direct heated air to other portions of the vehicle than its windshield and also at times when it is desir'ed'to store the device with the exception of the vacuum cups, the latter preferably remaining attached to the windshield glass in the initial, selected position during the entire cold weather season since, as often is the case, in instances where the windshield glass is too greasy or dusty the cupsdo not adhere readily thereto, whereby when once ,seated it is not convenient todisturb the same unnecessarily.

In operation the receiver or the intake end of the tube is secured in cooperative relation with the heater of the automobile by compressing the annular spring 29 for moving the detent pins 30 toward each other as shown by the dotted lines in Figure 9, said pins being inserted into the end of a heat pipe and upon the spring being released the pins 30 spring away from each other and grip the inner annular wall of said pipe in instances where'the vehicle is provided with said pipe type of heater. Similarly the pins may be afiixed to the grill work of other types of heaters as heretofore explained. The vacuum cups 4| being in place, as shown in Figure 1, the tube 32 is then extended to said cups and secured to the bar 42 for directing heated air upon the windshield glass 2|. The coiled spring 38 maintaining the tube open longitudinally while in use and at times when the tube is fully extended, as shown in Figure 1, and when -of lesser length as shown in Figure 8 and also at times when the tube contacts against the lower edge of the dashboard 46 of the vehicle as shown in Figure 1, said spring preventing portions of said tube from becoming bent towards other portions thereof such as would obstruct a free passage of air through the tube.

It will be noted that as thus described the device of the present invention may be readily-attached to or removed from an automobile; folded compactly for storage when not in use and readily extended for fitting various distances between different types of automobile heaters and windshield glasses for defrosting the latter and providing clear vision therethrough for decreasing the hazards of winter driving.

1. A device for directing heated air to a windshield comprising in combination with the heater, a cloth receiver having an annular spring at its mouth provided with oppositely disposed detents normally urged away from each other by said spring, said detents adapted to secure said receiver to said heater, a cloth tube connected at one end with the receiver, a coiled spring in said tube for keeping said tube open longitudinally, a

frame for the free end of said tube provided with a resilient clip, and vacuum cups adapted to be attached to a selected portion of said windshield and provided with a connecting bar, said clip adapted to be removably attached to said bar for supporting the free end of the tube adjacent to the windshield.

2. An automobile windshield defroster, comprising a collapsible tube adapted to be folded compactly when not in use, a receiver at one end of said tube adapted to be connected to a source of supply of heated air for said automobile, and collapsible means for keeping the tube open during use, the end of said tube opposite to said receiver end adapted to be held adjace t, said windshield for delivering heated air thereto as received from said source.

3. An automobile windshield defrosterfor use in conjunction with the air heater of said automobile, comprising a collapsible tube having an open end adapted to be connected to said heater for receiving hot air therefrom, the other end of said tube adapted to be heldadjacent said PETER NIELSEN. 

